WorkWindow

Outdoor Project Weather in Pasadena, CA

This page runs Pasadena's forecast against all six task rulesets at once. Verdicts load live above; the month-by-month matrix below — built from NOAA 1991–2020 normals — shows when each job's season opens. Deck Staining gets the most calendar here: 276 workable days a year.

Today at a glance

Verdicts load live from the 10-day forecast; without JavaScript this column stays blank and the year-round matrix below still answers the planning question.
TaskTodayBest months hereFull 10-day check
Deck Staining — Jul, Oct, Jun Stain a Deck in Pasadena →
Exterior Painting — Jul, Oct, Jun Paint Outside in Pasadena →
Driveway Sealing — Jul, Oct, Jun Seal a Driveway in Pasadena →
Concrete Pouring — Jul, Oct, Jun Pour Concrete in Pasadena →
Roof Coating — Jul, Oct, Jun Coat a Roof in Pasadena →
Lawn Seeding — Jan, Mar, May Seed a Lawn in Pasadena →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for PASADENA, CA US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 24 21 25 26 28 28 29 0 13 29 27 25
Exterior Painting 24 21 25 26 28 28 29 0 13 29 27 25
Driveway Sealing 0 0 0 19 28 28 29 0 13 29 13 0
Concrete Pouring 24 21 25 26 28 28 29 0 13 29 27 25
Roof Coating 24 21 25 26 28 28 29 0 13 29 27 25
Lawn Seeding 31 29 31 30 31 20 0 0 0 25 30 31

Season edges differ by task — that's the point of checking six at once. In Pasadena the earliest opener starts around April and the last holdout closes after July. A week that fails the paint rules on humidity can still pass seeding, and a frost that ends concrete season leaves sealing untouched until nights slip under 50°F.

If you only open one full check, make it deck staining — Pasadena's longest season at 276 workable days.

Full 10-day checks

California

Climatology: NOAA 1991–2020 normals via PASADENA, CA US (1.4 km from Pasadena center); live outlook by Open-Meteo.